Kyoukai Senjou no Horizon light novel ended finally after 10 years and 29 volumes, and Sunrise decided to re-re-release their unfinished anime adaptation covering the prologue to the overall story (which the first 2 anime seasons cover) on Bluray with this special episode just so people would buy it for the 4th time... to tribute the series AKA earn some easy money. S03 is still unconfirmed.

This special offers highly familiar feel. The glorious OST is here, same with the original style. All characters stay loyal to canon, etc. But the story is lacking, the entire special is completely pointless. Just a bad teaser for 3rd
season which may never come. Essentially this is just a lacklustery extra thing you receive on top of the real deal. "Buy a car and receive a lollipop worth of 5 cents completely free of charge!"

Well, I guess it did kind of make me want to rewatch the series for the 3rd time using the blurays I already own. No way I am giving scammers at Sunrise any shekels for creating this shit.